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cletus-plugins/README.md
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# Cletus plugins
Build plugins for Cletus, the desktop AI assistant for engineering and
manufacturing teams, and publish them in the Eidonix plugin store.
## Status
- **Ready now:** the specification, the worker SDK (`sdk/pluginsdk`) and the
`cletus-plugin` tool, which creates a plugin, checks it the way the store
does and runs it under a test host. You can build and test a worker and
its chat tools today.
- **Later releases:**
- screens;
- more host services (AI models, vision, speech, camera and microphone,
saved connections, a secret store);
- loading your development build into Cletus itself;
- store submissions.
## What a plugin is
A plugin is a Go program (the **worker**) that adds chat tools Cletus's AI
can use, and services other plugins can call. Through the host it can:
- open and save files the user chooses;
- read and write the user's shared folders;
- start background Cletus runs over the user's files;
- connect to machines, databases and services the user sets up, or to
servers it names.
## Start here
If you work with a coding agent (Claude Code, Codex or similar), point it at
this repository and tell it what you want to build. `AGENTS.md` holds the
rules it must follow, and it reads the rest from there.
If you work by hand, read in this order:
1. `docs/specification.md`: the package, `plugin.json`, permissions, the
worker and services.
2. `docs/host-api.md`: every host method.
3. `docs/style-guide.md`: how Cletus plugins read and behave.
4. `docs/patterns.md`: how to build common kinds of plugin.
5. `docs/submission.md` and `docs/review-checklist.md`: how publishing will
work.
## Tools
Needs Go 1.24 or later.
```sh
go install git.eidonix.com/eidonix/cletus-plugins/sdk/cmd/cletus-plugin@latest
cletus-plugin new acme.gauge-check # a working plugin from the template
cd gauge-check
cletus-plugin check # the store's automated checks
cletus-plugin run tools # list the chat tools
cletus-plugin run invoke gauge_check_count_lines '{"path":"sample.txt"}'
```
`run` starts your worker under a test host that answers host calls the way
Cletus does, enforces your declared permissions, and prints every host call
your worker makes.
## Publishing
Plugins reach users only through the Eidonix plugin store, and Cletus
installs nothing else. You'll submit source code; Eidonix builds it, checks
it, reviews it and signs it. See `docs/submission.md`.
Questions, and requests for a publisher account: support@eidonix.com
## Licence
Apache License 2.0 (`LICENSE`). The names Cletus and Eidonix are not
licensed.